Liberal leader Michael Ignatieff and his wife Zsuzsanna Zsohar wave to the crowd as they attend a campaign rally in Edmonton on Saturday, April 16, 2011.(Jonathan Hayward/THE CANADIAN PRESS)

Liberal leader Michael Ignatieff throws a snowball towards photographers as his wife Zsuzsanna Zsohar and liberal candidate Ralph Goodale, second right, look on during a campaign stop in Regina, Sask, Saturday, April 16, 2011.(Jonathan Hayward / THE CANADIAN PRESS)

New Democratic Party leader Jack Layton kisses his wife Olivia Chow after speaking to the media following the English language federal election debate in Ottawa Ont., on Tuesday, April 12, 2011.(Fred Chartrand / THE CANADIAN PRESS)

New Democratic Party leader Jack Layton and wife Olivia Chow arrive to the English language federal election debate in Ottawa Ont., on Tuesday, April 12, 2011.(Fred Chartrand / THE CANADIAN PRESS)

Prime Minister Stephen Harper and Laureen help call bingo at a seniors' residence in Sanit-Hyacinthe Quebec on Sunday, April 10, 2011.(Sean Kilpatrick / THE CANADIAN PRESS)

Prime Minister Stephen Harper and his wife Laureen take a look at a cow at a dairy farm owned by the Chagnon family, Sunday April 10, 2011(Sean Kilpatrick / THE CANADIAN PRESS)

Bloc Quebecois Leader Gilles Duceppe and his wife Yolande Brunelle, centre, chat with a juggler as they visit the Ecole de Cirque de Quebec during the campaign stop in Quebec City on Friday April 15, 2011.(Clement Allard / THE CANADIAN PRESS)

Bloc Quebecois leader Gilles Duceppe has lipstick wiped off his lips following a kiss from his wife Yolande Brunelle (L) during a campaign stop in Montreal, April 10, 2011.(Christinne Muschi / REUTERS)